baber/WOPTO huggingface dataset:
Patent GB-1102745-A (GB)
Title: Manufacture of welded beams
IPC: B21D47/04
Filed: 1965-07-16
Abstract: 1,102,745. Making beams; welding by pressure. AMERICAN MACHINE & FOUNDRY CO. 16 July, 1965 [4 Aug., 1964], No. 30371/65. Headings B3A and B3R. Forming a metal beam includes advancing a web strip and a flange strip past a weld point with a V-shaped gap therebetween, applying high-frequency current flow on the edges of the gap, applying pressure to bring the strips into welded engagement at the weld point and guiding the flange strip in a curved path prior to the weld point so that its trailing end is constrained to follow the curved path to prevent premature closing of the V-shaped gap. A weld strip 10, Fig. 1, is pushed by rollers past a weld point w and a succession of flange forming strips of finite length 11, lla are pushed by rollers through a stationary U-shaped curved guide channel 20 to meet the web strip at the weld point where rollers 12, 13 press the members together. Current of a frequency of 50 kc. per sec. or possible 300 or 400 kc. per sec. is applied by contacts 15, 16 to the web and flange members to flow along the V-shaped gap between them to the weld point. In a modification the web strip is drawn from a coil, the flange forming strips are engaged on their top and possibly also lower edges by rollers in the U-shaped guide member and guide rollers are provided in advance of the guide member. In another embodiment the web is also formed by strips 10a, 10b, Fig. 3, of finite length which are guided by rollers 42 and closely adjacent the weld area by a guide member 43. A guide means may engage the flange beyond the weld point. In another embodiment flanges may be welded simultaneously to both sides of a web, the flanges being of finite or continuous length and the web being of a continuous length. The welded beam may be cut into lengths by a saw &c. The ends of the flange pieces may be shaped to engage only at the middle and the ends of web finite length pieces are shaped to engage only at the ends. To ensure that the very ends of the web and flange are welded lugs are welded thereto and after welding cut off and re-used. A modified flange guide member employs rollers 97, Fig. 10, incorporated therein to project a small amount therefrom. Reference has been directed by the Comptroller to Specification 857,197.
Patent GB-238121-A (GB)
Title: Improvements in means for securing handles to brooms and other articles
IPC: B25G3/28
Filed: 1924-12-17
Abstract: 238,121. Pemberton, T. W. Dec. 17, 1924. Fixing by screwed sockets with wedge and like expanding devices.-In devices for securing handles to brooms &c. of the kind comprising a tubular handle fitting slit from the lower end and a taper plug arranged to project from this end and adapted to contact with the bottom of the brush hole so as to expand the split fitting when the handle is screwed in, means are provided for maintaining the plug in functioning relation with the screwed fitting and preventing its detachment therefrom when not applied to the broom. The lower threaded part c of the socket b fitted to the handle a is divided by longitudinal slits f and is expanded to grip the sides of the hole j in the broom head k when the handle is screwed in by the taper plug g, which is maintained in position in the socket before the handle is applied to the broom by means of a transverse pin i passing through a hole k in the taper plug. In the modification shown in Fig. 5, the plug g is maintained in functioning position in the socket b by interengaging ribs l, m, on the two parts, one or both ribs being formed with a chamfer n to facilitate engagement.
Patent GB-756903-A (GB)
Title: Improvements in or relating to apparatus for delivering bulk material
IPC: B65G65/00
Filed: 1954-10-22
Abstract: 756,903. Endless-belt conveyers. BUDERUS' SCHE EISENWERKE. Oct. 22,1954 [Nov. 13, 1953], No. 30531/54. Class 78 (1). Apparatus for delivering material, e.g. sand, from a bunker 1 comprises an endless-belt conveyer 2, the end rolls 3 of which are mounted on a wheeled carriage 5 running backwards and forwards on rails 7. The belt is supported below the mouth of the bunker by rollers 4. The right-hand roller 3 is driven by a motor through gearing 9 and drives the axle of the adjacent wheel 6 on which is mounted an electromagnetic clutch 10 (not shown). When the motor is switched on and the clutch is engaged, the belt is driven round the rollers, the carriage travels to the right and the material falls off the end of the belt through an open hopper 11 into a moulding box 12. The movement of the carriage is stopped when it engages a limit switch 16 which effects the disengagement of the clutch 10. The roller 3, however, continues to be driven, but since the pressure of the material on the belt prevents the movement of the latter, the roller moves along the belt to the left taking the carriage with it. A stop 17 limits the extent of this movement and a limit switch 18 effects the re-engagement of the clutch 10. This switch is used also to control the motor.
Patent GB-1331876-A (GB)
Title: Easy opening container wall
IPC: B65D17/347
Filed: 1971-06-30
Abstract: 1331876 Portable containers; openings E C FRAZE 30 June 1971 [17 Aug 1970] 30570/71 Heading B8D An easy opening container wall 11, e.g. for attachment to a can, has a line of weakness 15 defining a tear-out panel 17, and a tab 23 attached to the panel by rivet 25 the tab having a nose 39 which is depressed to rupture line 15 when finger-hold portion 29 of the tab is raised. A secondary, shorter non-rupturing line of weakness 27 is formed between nose 39 and rivet 25 to assist penetration by the nose. The tabs are formed by cutting slots 69 in strip material 67 and piercing holes 71, 73 to form blanks 65 which are then worked to form rolled edges of a tab 23<SP>1</SP>.
Patent GB-1084589-A (GB)
Title: Improvements in or relating to eddy-current apparatus
IPC: H02K49/04
Filed: 1965-07-19
Abstract: 1,084,589. Eddy-current machines. HEENAN & FROUDE Ltd. July 19, 1965 [Aug. 31, 1964], No. 30578/65. Heading H2A. In eddy-current apparatus, such as couplings, dynamometers and brakes, the inner surface of the inductor drum 25 is provided with a facing A of magnetizable metal, e.g. nickel, having an electrical resistance lower than that of the inductor drum, so as to protect the drum against corrosion and to improve the torqueslipspeed characteristic of the apparatus. The gap 27 between inductor and rotor teeth 23 may be 1/32 to <SP>1</SP>/ 8  of an inch and the thickness of the facing may be from 0À005 to 0À030 of an inch and may have a resistance of 5-8 micro ohm cm. at 20‹ C. The inductor drum 25 is formed of two cylinders, of e.g. iron or steel, welded together at 2. A generator 12, which is belt driven from shaft 17, feeds the field winding 7. Coolant, e.g. water, from inlet 4 splits into two paths L, U; one through the rotor teeth 23 and the other through gaps 33, 35 between the annular field poles 3, 5 and the inductor drum to meet in chamber 8 for removal at 10.
Patent GB-1112977-A (GB)
Title: Treatment of molten ferrous metals in the production of ingots therefrom
Inventor: JONES EVAN THOMAS RICHARD
IPC: B22D27/20
Filed: 1965-07-19
Abstract: A method of treating molten ferrous metals in the production of ingots comprises locating in the bottom of an ingot mould a quantity of flux contained in a mild steel container, charging the ingot mould with the molten metal thereby melting the container and the flux within it and to allow the flux to be distributed in the molten ferrous metal.  Fluxes which are particularly suitable are, for example, cryolites, calcium, magnesium and sodium silico-fluorides. The container is made from mild steel sheet of 0.004" to 0.01" thick and is folded to envelope the flux material. Within the container there may also be included a diluting material such sodium carbonate and/or other conditioning agents e.g. deoxidants.  The flux should preferably not consist of more than two active agents.  Specific examples are given in the Specification.
Patent GB-465357-A (GB)
Title: Method of and apparatus for putting liquids into suspension in a gaseous medium
IPC: B01F3/04
Filed: 1935-11-05
Abstract: 465,357. Spray - producers. GAUCHARD, F. Nov. 5, 1935, No. 30614. Convention date, Feb. 19. [Class 69 (iii)] [Also in Group XII] A spray-producer is formed with nozzles 8 which communicate with a suction tube 11 extending into liquid, and compressed air passes through a tube 4, openings 13, and over the nozzles to jets 14. The atomized mixture strikes the wall of the container 1 and flows past baffles 15, 16 before escaping through an outlet tube 19.
Patent GB-1234813-A (GB)
Title: Improved quick change variator
Inventor: DILGER LAWRENCE
IPC: G06M1/06
Filed: 1968-06-27
Abstract: 1,234,813. Variators. VEEDER INDUSTRIES Inc. 25 June, 1969 [27 June, 1968], No. 30713/68. Heading G4D. Particularly for volume x price liquiddispensing apparatus, a variator of the type in which a drive shaft drives spindles at different stepped rates and the movements of take-off gears are added by a succession of epicyclic gears, the conventional radix of 10 is replaced by another. Thus a variator giving 1000 different ratios and using nine spindles and two summing differentials (10<SP>3</SP>) can be replaced by one using five spindles and three differentials (6<SP>4</SP>) or three spindles and four differentials (4<SP>5</SP>).
Patent GB-602909-A (GB)
Title: Improvements in duplicating machines
IPC: B41L5/06
Filed: 1945-11-16
Abstract: 602,909. Rotary duplicators. FORD, F. R. Nov. 16, 1945, No. 30719. [Class 100(ii)] Tripping and like arrangements: -In rotary mirror-script duplicators wherein the spindle 13 of a pressure roller 14 is supported in movable bearings 12 connectedto crank arms 17 on a shaft 16 which can be oscillated to vary the pressure exerted on a printing-drum 15 or to separate the roller from the drum, angular adjustment of the shaft 16 is effected by means of a ratchet wheel 32 having associated therewith a driving-pawl 34 and a retaining-pawl 35 which are acted upon by an operating-lever 39, successive movements of the lever towards one extreme position producing a step-by-step rotation of the ratchet 32 to increase the loading of the roller 14 and a single movement of the lever towards the other extreme position effecting a complete removal of the pressure. The ratchet 32 is fixed to a shaft 31 carrying an arm 30, a crank-pin 29 on which engages an L-shaped slot 46 in an arm 27 fixed to the shaft 16, the first movement of the lever 39 bringing the crankpin out of the transverse part of the slot, this being the " no pressure" position of the wheel 32 and successive forward movements of the lever increasing the pressure of the roller 14 by progressively diminishing amounts. To move the roller 14 clear of the drum for changing the master sheet, the lever 39 is moved rearwardly from its normal position so that a spur 52 on the lever releases the pawl 35 whereupon the ratchet returns to the " roller clear position under the influence of springs 23. A part-cylindrical shell fixed to the ratchet 32 bears numerals indicating through a window in a casing the angular position of the ratchet. Specification 562,725 is referred to.
Patent GB-367368-A (GB)
Title: Improvements in and relating to machines adapted for use for mixing, emulsifying, homogenising comminuting and like purposes
IPC: B01F7/00
Filed: 1930-10-16
Abstract: 367,368. Mixing, emulsifying, etc.; centrifugal machines. SERGEANT, W. R., Clacton House, Heath Park Road, Romford, Essex, and BURT, BOULTON, & HAYWOOD, Ltd., Salisbury House, London Wall, London. Oct. 16, 1930, No. 30979. [Classes 23 and 59.] A machine for mixing, emulsifying, homogenizing, comminuting, &c. consists of relatively rotatable members one of which is fitted with beaters located at intervals on concentric circles, while the other is furnished with annular webs having projections thereon extending towards each other whereby restricted spaces are formed through which the beaters pass. Figs. 1 and 2 show views at right-angles of one form in which a rotary member 6, in the form of a disc, is provided with projections 7, of streamline form, which pass between the projections 11 on the annular webs 10 of a fixed member 9. The member 6 rotates in a casing one wall of which is formed by the member 9 which can be adjusted axially by means of bolts 22, and secured by bolts 17 and nuts 18, 20, to vary the clearance between the beaters 7 and projections 11 the surfaces of which are for this purpose tapered. The material may be fed through a port 12 and discharged centrally, or vice-versa, the webs 10 being gapped at 14, 15 to permit the flow; the chamber may be jacketed. In another form the webbed member rotates and the webs are provided with a number of gaps to permit the passage of the material through the machine.
Patent GB-223082-A (GB)
Title: Process for the manufacture of barium cyanide
IPC: C01C3/00
Filed: 1923-12-10
Abstract: Barium cyanide is obtained by adding dibarium silicate, Ba2 SiO4, to the usual mixture of barium carbonate and carbon so as to render the mixture infusible at the temperature of reaction with the nitrogen. One half to one molecule of the silicate may be employed for one molecule of carbonate.  The reaction may be effected in a rotary furnace.
Patent GB-1007742-A (GB)
Title: Production of maleic anhydride
Inventor: SCHLIESSER WALTER
Filed: 1962-08-14
Abstract: Maleic anhydride is prepared by contacting maleic acid, or a mixture of maleic and phthalic acids, at a temperature of from 200 DEG  to 450 DEG  C., in a reaction zone, with moving particles of a dehydration catalyst of particle size of 0.05 to 0.5 mm., condensing from the gases leaving the reaction zone the anhydrides by cooling, and separating the maleic anhydride.  The catalyst may be any solid dehydration catalyst for example, borates, phosphates, alumina, silica gel, titanium dioxide, zirconium dioxide, thorium oxide and mixtures thereof, which may be supported on a carrier which may be inert, e.g. pumice, aluminium silicate or silicon carbide, or may be active, e.g. silica gel. The catalyst is preferably used as a fluidized bed formed by a stream of inert gas or alternatively may be allowed to flow through the reaction chamber from top to bottom with continuous circulation without creating a fluidized bed.  The reaction chamber may be heated by direct external heating or by using inert gases which have been preheated to, for example, 220-450 DEG C.  The starting material, which may be pure or technical grade maleic acid or a mixture of maleic and phthalic acids obtained by, for example, oxidation of o-dialkyl benzenes, is fed to the reaction chamber in a molten or powdered state, preferably with the aid of a gas stream.  When using a melt it is advantageous to atomize the liquid through a nozzle.  A powder is preferably added at room temperature, or slightly above, e.g. 80-90 DEG  C.  The reaction is preferably carried out at 220-300 DEG  C. at pressures of, for example, 200 mm. Hg to 5 atmospheres, preferably at ordinary pressure for a residence time of 0.5 to 20 secs.  When the starting material consists essentially of maleic acid, for example 98% maleic acid, a residence time of 0.5 to 1 sec. may be used. With a large proportion of phthalic acid, residence times of up to 10 secs. may be required. All the reaction product may be condensed, but it is preferably to cool the products to 1 DEG  to 5 DEG  C. above the dew point of the water present to prevent the condensation of water. When a large amount of phthalic anhydride is present, e.g. above 90%, it is preferable to carry out a fractional condensation, initially at 130-135 DEG  C. to give nearly pure phthalic anhydride followed by cooling to just above the dew point of water to give a mixture of maleic and phthalic anhydrides.  The maleic anhydride, which is free of fumaric acid, may be purified by fractional distillation.  The outgoing gases from the condensation may be washed with water to give a solution of maleic and phthalic acids which on removal of water may be recycled.
Patent GB-324398-A (GB)
Title: Improvements in apparatus for straining fluids
IPC: B01D33/00
Filed: 1928-10-26
Abstract: 324,398. Bailey, F., and Jackson, F. H. Oct. 26, 1928. Strainers comprising grids or gratings. -In apparatus for straining fluids having sectors of straining material mounted between the spokes of a wheel-shaped carrier, as described in Specification 246,551, accordion-pleated wire gauze or perforated corrugated sheet metal is used as straining material. The edges of the sectors of material a are clamped between serrated bars b, Fig. 4, which are held together by screws and the elements so formed are secured in position between locking bars and flanges on the spokes of the wheel w, Fig. 2. Straining apparatus of this type may be formed with two straining partitions, coarser impurities being retained by a partition c, Fig. 6, formed as described in Specification 307,984 and finer impurities by a partition a as described above. The partition c may have openings fitted with flap valves c<2> which open, when flow through the strainer is reversed for cleansing, so as to allow of the passage of the larger particles which have collected in the space between the partitions.
Patent GB-1159849-A (GB)
Title: Varying-Pitch Chain-Like Arrangement
IPC: B65G17/00
Filed: 1967-07-06
Abstract: 1,159,849. Conveyer systems. BATTELLE DEVELOPMENT CORP. 6 July, 1967 [6 July, 1966], No. 31091/67. Heading B7L. [Also in Division B8] A variable pitch conveyer chain comprises a member 15 having guide surfaces 16, 17, the spacing of which varies along a part of the member (at QR and ON, Fig. 13), a plurality of links, each of which comprises rollers 10, 11, carried respectively by pins 8, 9, and cooperating with the surface 16, 17, a funiform element 1 passing round a pulley 2 carried by the pin 8 and divided by the pulley 2 into a longitudinal strand 3 fastened to the pin 8 of an adjacent link, and a transverse strand 4 connected to the pin 9, and a coupling link 6 between the pin 9 and the pin 8 of the adjacent link. As applied to a conveyer (Fig. 13), the pitch of the chain is at its minimum when the distance between the surfaces 16, 17 is a maximum (section 81). Load carriers 86 are connected to the chain by hooks 87. Under minimum pitch conditions, Fig. 4 (not shown), a recess 14 on an extension 12 of the link 6 engages the pin 8 of the next-but-one link. Similarly, a recess 13 engages the pin 9 of the adjacent link under maximum pitch conditions (extreme right of Fig. 1). In a modification (Fig. 7, not shown), the coupling link 6 is in the form of a funiform element (53B, 54B). In a variation of the latter construction (Fig. 11, not shown), the coupling link is reeved around a pulley system in order to increase the amount of pitch change for a given increase in distance between the surfaces 16, 17. The invention is applicable to the transport systems described in Specifications 1,034,969, 1,035,704 and 1,075,818.
Patent GB-1262167-A (GB)
Title: Flexible expanded olefin polymer boards and blocks
IPC: B29C65/00
Filed: 1969-06-20
Abstract: 1,262,167. Foamed plastics laminates. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 June, 1969 [22 June, 1968], No. 31222/69. Heading B5N. A process for the production of flexible expanded plastics boards and blocks having a thickness of more than 2 cm. comprises bonding expanded plastics webs or boards having a thickness of more than 1 cm. which have been prepared by fusing together expanded olefine polymer particles having a gel content of from 5 to 80% by weight, wherein the surfaces of webs or boards to be bonded together are arranged at a distance of at least 0À5 mm. from each other and heated to a temperature which is at least 5‹C. above the lower softening limit of the olefine polymer used, the polymer being a crystalline olefine polymer whose X-ray crystallinity at 25‹ C. is more than 25%, the boards being kept for at least two seconds at the bonding temperature to provide sufficient softening of the surface, the webs or boards are compressed at the hot surfaces by at least 1% of their volume and pressure is then released. An olefine polymer film of the same polymer as the expanded materials may be placed between the surfaces of the boards or webs to be bonded together. Specified olefine polymers are copolymers and homopolymers of ethylene, propylene and butene, e.g. copolymers of ethylene with butyl esters of acrylic or methacrylic acid. The expanded particles may contain cross-linked constituents obtained, for example, by irradiating the particles with X-rays or electron beams or by reaction with compounds which decompose into free radicals. The expanded particles may also contain flame retardants, dyes, fillers, lubricants, polyisobutylene or reinforcement materials.
Patent GB-1522625-A (GB)
Title: Code setting apparatus
IPC: B61L25/04
Filed: 1975-07-25
Abstract: 1522625 Setting code information on vehicles BURO PATENT AG 25 July 1975 [27 July 1974] 31242/75 Heading B7N Apparatus for setting coded information for a vehicle 10 running on a track 16 by positioning magnetic code members 18a-18c along horizontally extending guides 17a-17c, comprises adjacent the track, three banks 21a-21c of solenoid operated pins 22, one from each bank being selected in accordance with the coded information to be set and moved into the path of a code member 18 to position the member, previously set to zero, in the required position when the apparatus and vehicle code assembly move into position directly opposite each other. At this position, detected by sensor 24 responding to magnet 23 on the vehicle, either the pins are retracted allowing the vehicle to continue in the same direction, or the vehicle is stopped and leaves the code setting apparatus in the opposite direction or the vehicle is stopped and moved away from the apparatus, in a direction transverse to its approach, to an adjacent track.
Patent GB-475923-A (GB)
Title: Improvements in bogies for railway and like vehicles
IPC: H02B1/00
Filed: 1936-04-20
Abstract: 475,923. Railway -vehicle undercarriages. ALGRAIN, P. April 20, 1936, No. 31354. Convention date, April 20, 1935. Divided out of 473,848. [Class 103 (vi)] In a railway &c. vehicle of the kind in which the body load is directly taken by pneumatic cushions which are relieved from further load at a predetermined state of compression, the auxiliary supporting means in operation does not decrease the air-borne area of the cushions and is also of a resilient nature so that an elastic vibration-absorbing support is provided under all circumstances. In the construction shown, the load is transmitted through the bolster 5 to the leaf springs 4 by means of links 8 and also directly to the cushions 3 which are compressed between plates 9, 10. Beneath the bolster 5 is disposed a beam 18 provided on its lower surface with a strip of rubber at like material 19 which comes into operation at the limit of compression of the cushions 3. In a modification, Fig. 2, the auxiliary element 22 is in the form of a block surrounding the air cushions 3. Specification 307,154, [Class 103 (vi)], is referred to.